Herbicide mixtures of uracil, a carbamate and a pyridazone

ABSTRACT

Herbicidal mixtures of a three component mixture of (a) 3-cyclohexyl-5,6-trimethylene uracil; (b) 3-methoxycarbonylaminophenyl-N-(3&#39;-methylphenyl)carbamate, and (c) 1-phenyl-4-amino-5-chloropyridazone-(6).

RELATED APPLICATION

This application is a division of my copending application Ser. No.348,085, filed Apr. 4, 1973, the disclosure of which is incorporatedherein by reference.

The present invention relates to herbicide compositions containing (a)3-cyclohexyl-5,6 -trimethylene uracil, (b)3-methoxycarbonylaminophenyl-N-(3' -methylphenyl)-carbamate, and (c)1-phenyl-4-amino-5-chloropyridazone-(6) at a weight ratio of1-10:1-10:1-10.

The agents according to the invention may be used as solutions,emulsions, suspensions, oil dispersions, granules or dusts. The form ofapplication depends entirely on the purpose for which the agents arebeing used; in any case it should ensure a fine distribution of theactive ingredient.

For the preparation of solutions to be sprayed direct, mineral oilfractions of medium to high boiling point, such as kerosene or dieseloil, further coal-tar oils and oils of vegetable or mineral origin, andcyclic hydrocarbons such as tetrahydronaphthalene and alkylatednaphthalenes are suitable.

Aqueous formulations may be prepared from emulsion concentrates, pastesor wettable powders by adding water. To prepare emulsions theingredients as such or dissolved in a solvent may be homogenized inwater or organic solvents by means of wetting or dispersing agents, e.g., polyethylene oxide adducts. Concentrates which are suitable fordilution with water may be prepared from active ingredient, wettingagent, adherent, emulsifying or dispersing agent and possibly solvent.Oils of various types may be added to ready-to-use spray liquors.

Dusts may be prepared by mixing or grinding the active ingredients witha solid carrier, e. g., kieselguhr, talc, clay or fertilizers.

Granules may be prepared by bonding the active ingredients to solidcarriers.

Directly sprayable dispersions may also be prepared with oils.

The new compounds may be mixed with fertilizers, insecticides,fungicides and other herbicides.

The new herbicides may be applied either pre- or post-emergence, and areparticularly suited for controlling dicotyledonous seed weeds andmonocotyledonous seed grasses in crops such as beet, spinach, potatoes,peas, beans and groundnuts.

EXAMPLE 1

In the greenhouse various plants were treated at a growth height of 3 to11 cm with the following amounts of the following active ingredients andcompositions thereof as dispersions:

I 3-cyclohexyl-5, 6-trimethylene uracil, 0.1, 1.0 and 1.2 kg/ha;

Ii 3-methoxycarbonylaminophenyl-N-(3'-methylphenyl)-carbamate, 0.1, 1.0and 1.2 kg/ha;

Iii 1-phenyl-4-amino-5-chloropyridazone-(6), 0.1, 1.0 and 1.2 kg/ha;

I+ii+iii: 0.1+0.1+1.0, 0.1+1.0+0.1 and 1.0+0.1+0.1 kg/ha.

After 2 to 3 weeks it was ascertained that the compositions had a betterherbicidal action than their individual components, combined with thesame good crop plant compatibility.

The results are given below:Active ingredient I II IIIkg/ha 0.1 1.0 1.20.1 1.0 1.2 0.1 1.01.2__________________________________________________________________________Cropplants:Beta vulgaris 0 0 0 0 0 0 0 0 0Unwanted plants:Avena fatua 2 3034 2 20 23 1 10 11Bromus tectorum 3 35 39 2 15 18 0 20 21Matricariachamomilla 4 40 43 5 35 39 5 40 44Setaria faberii 3 35 38 3 20 23 1 2024Sinapis arvensis 12 65 73 8 75 81 13 35 39 0 = no damage100 = completedestruction__________________________________________________________________________

    Active ingredient                                                                            I + II + III                                                                          I + II + III                                                                          I + II + III                                   kg/ha          0.1+0.1+1.0                                                                           0.1+1.0+0.1                                                                           1.0+0.1+0.1                                    __________________________________________________________________________    Crop plants:                                                                  Beta vulgaris   0       0       0                                             Unwanted plants:                                                              Avena fatua    60      58      70                                             Bromus tectorum                                                                              60      56      65                                             Matricaria chamomilla                                                                        75      73      76                                             Setaria faberii                                                                              65      60      73                                             Sinapis arvensis                                                                             100     100     95                                              0 = no damage                                                                100 = complete destruction                                                    __________________________________________________________________________

I claim:
 1. A herbicide composition containing a herbicidally effectiveamount of a mixture of herbicides consisting of:a.3-cyclohexyl-5,6-trimethylene uracil, b.3-methoxycarbonylaminophenyl-N-(3'-methylphenyl)-carbamate, and c.1-phenyl-4-amino-5-chloropyridazone-(6) in a weight ratio of a:b:c of1-10: 1-10:1-10.